Odin
Cap'n Proto
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Odin | Cap'n Proto | |
---|---|---|
84 | 66 | |
5,598 | 11,163 | |
4.9% | 1.5% | |
9.9 | 9.3 | |
2 days ago | 3 days ago | |
Odin | C++ | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Odin
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Zig, Rust, and Other Languages
There's also Odin[0] too. I tried using them all and Odin was pretty nice. Nim is also good too but a lot more features.
But - I concluded that language matters a lot less compared to APIs. Yes, the language should have enough good features to let the programmers express themselves, but overall well designed APIs matter a lot more than language. For example -tossing most of the C stdlib and following a consistent coding style (similar to one described here -[1]), with using Arenas for memory allocation, I can be just as productive in C.
[0] - https://odin-lang.org
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Odin Programming Language
I highly recommend looking at:
* The Overview: <https://odin-lang.org/docs/overview/>
* examples/demo: <https://github.com/odin-lang/Odin/blob/master/examples/demo/...>
As for the first example: a basic lexing example is probably boring, but it does show some basic ideas of what the language is about. If people want to write better examples or just reorder the current ones, please feel free to make an issue or PR on the website's GitHub page: <https://github.com/odin-lang/odin-lang.org>.
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babel tree
I use Odin primarily, it’s C-level but pascal/Go syntax and inspiration https://odin-lang.org/
- Botlib: Telegram Bots in C by Antirez
- "Odin is a general-purpose programming language with distinct typing built for high performance, modern systems and data-oriented programming."
- Austral Programming Language
- Small Joys with Odin
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Can't decide what engine/library/framework I want to master
Website: https://odin-lang.org/
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Download Odin and get started today! Includes binding to popular video game libraries
Get it from the website: https://odin-lang.org/ -- Odin includes bindings to popular gamedev libraries & APIs such as Raylib, SDL, DirectX, OpenGL and Vulkan.
- Check this odin file out for a demo of many of the language's features. It comes with the compiler inside the examples folder. I refer to it all the time when I need to figure out how to do something.
Cap'n Proto
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Mysterious Moving Pointers
Yeah I pretty much only use my own alternate container implementations (from KJ[0]), which avoid these footguns, but the result is everyone complains our project is written in Kenton-Language rather than C++ and there's no Stack Overflow for it and we can't hire engineers who know how to write it... oops.
[0] https://github.com/capnproto/capnproto/blob/v2/kjdoc/tour.md
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Show HN: Comprehensive inter-process communication (IPC) toolkit in modern C++
- may massively reduce the latency involved.
Those sharing Cap'n Proto-encoded data may have particular interest. Cap'n Proto (https://capnproto.org) is fantastic at its core task - in-place serialization with zero-copy - and we wanted to make the IPC (inter-process communication) involving capnp-serialized messages be zero-copy, end-to-end.
That said, we paid equal attention to other varieties of payload; it's not limited to capnp-encoded messages. For example there is painless (<-- I hope!) zero-copy transmission of arbitrary combinations of STL-compliant native C++ data structures.
To help determine whether Flow-IPC is relevant to you we wrote an intro blog post. It works through an example, summarizes the available features, and has some performance results. https://www.linode.com/blog/open-source/flow-ipc-introductio...
Of course there's nothing wrong with going straight to the GitHub link and getting into the README and docs.
Currently Flow-IPC is for Linux. (macOS/ARM64 and Windows support could follow soon, depending on demand/contributions.)
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Condvars and atomics do not mix
FWIW, my C++ toolkit library, KJ, does the same thing.[0]
But presumably you could still write a condition predicate which looks at things which aren't actually part of the mutex-wrapped structure? Or does is the Rust type system able to enforce that the callback can only consider the mutex-wrapped value and values that are constant over the lifetime of the wait? (You need the latter e.g. if you are waiting for the mutex-wrapped value to compare equal to some local variable...)
[0] https://github.com/capnproto/capnproto/blob/e6ad6f919aeb381b...
- Cap'n'Proto: infinitely faster than Protobuf
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I don’t understand zero copy
The second one is to encode data in such a way that you can read it and operate on it directly from the buffer. You write data in a layout that is the same, or easily transformed as types in memory. To do that you usually need to encode with a known schema, only Sized types to efficiently compute fields locations as offsets in the buffer, and you usually represent pointers as offset into the encode. You can look at capnproto protocol for instance https://capnproto.org/
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OpenTF Renames Itself to OpenTofu
Worked well for Cap'n Proto (the cerealization protocol)! https://capnproto.org/
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A Critique of the Cap'n Proto Schema Language
With all due respect, you read completely wrong.
* The very first use case for which Cap'n Proto was designed was to be the protocol that Sandstorm.io used to talk between sandbox and supervisor -- an explicitly adversarial security scenario.
* The documentation explicitly calls out how implementations should manage resource exhaustion problems like deep recursion depth (stack overflow risk).
* The implementation has been fuzz-tested multiple ways, including as part of Google's oss-fuzz.
* When there are security bugs, I issue advisories like this:
https://github.com/capnproto/capnproto/tree/v2/security-advi...
* The primary aim of the entire project is to be a Capability-Based Security RPC protocol.
- Cap'n Proto: serialization/RPC system – core tools and C++ library
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Sandstorm: Open-source platform for self-hosting web app
I like how they use capability-based security [0] and use Cap'n Proto protocol. This is another technology that is slow to get broad adoption, but has many things going for when compared to e.g. Protocol Buffers (Cap'n Proto is created by the primary author of Protobuf v2, Kenton Varda).
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Flatty - flat message buffers with direct mapping to Rust types without packing/unpacking
Related but not Rust-specific: FlatBuffers, Cap'n Proto.
What are some alternatives?
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
gRPC - The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io
Protobuf - Protocol Buffers - Google's data interchange format
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
FlatBuffers - FlatBuffers: Memory Efficient Serialization Library
rust - Empowering everyone to build reliable and efficient software.
ZeroMQ - ZeroMQ core engine in C++, implements ZMTP/3.1
carbon-lang - Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)
Apache Thrift - Apache Thrift
Beef - Beef Programming Language
MessagePack - MessagePack serializer implementation for Java / msgpack.org[Java]